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D-clockD-clock
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完成基本的拍照功能和文档添加
1 parent 028eaeb commit 59e11f4

12 files changed

Lines changed: 288 additions & 22 deletions

‎build.gradle‎

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@@ -22,5 +22,6 @@ android {
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dependencies {
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compile fileTree(dir: 'libs', include: ['*.jar'])
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testCompile 'junit:junit:4.12'
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compile project(':androidutils')
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compile 'com.android.support:appcompat-v7:23.2.1'
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}

‎notes/00_Android系统相机拍照的常见问题及解决方案.md‎

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‎src/main/AndroidManifest.xml‎

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<manifest xmlns:android="http://schemas.android.com/apk/res/android"
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package="com.clock.study">
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<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
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<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
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<application
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android:name=".StudyApplication"
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android:allowBackup="true"
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android:icon="@mipmap/ic_launcher"
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android:label="@string/app_name"
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android:supportsRtl="true"
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android:theme="@style/AppTheme">
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<activity android:name=".MainActivity">
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<activity
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android:name=".activity.MainActivity"
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android:screenOrientation="portrait">
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<intent-filter>
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<action android:name="android.intent.action.MAIN" />
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<category android:name="android.intent.category.LAUNCHER" />
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</intent-filter>
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</activity>
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<activity
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android:name=".activity.CameraTakePhotoActivity"
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android:label="@string/take_photo"
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android:screenOrientation="portrait" />
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<activity
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android:name=".activity.PhotoPreviewActivity"
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android:label="@string/photo_preview"
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android:screenOrientation="portrait" />
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</application>
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</manifest>

‎src/main/java/com/clock/study/MainActivity.java‎

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This file was deleted.

‎src/main/java/com/clock/study/StudyApplication.java‎

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package com.clock.study;
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import android.app.Application;
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import com.clock.utils.crash.CrashExceptionHandler;
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/**
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* Created by Clock on 2016/5/13.
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*/
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public class StudyApplication extends Application {
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/**
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* app在sd卡的主目录
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*/
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public final static String APP_MAIN_FOLDER_NAME = "AndroidStudy";
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/**
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* 本地存放闪退日志的目录
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*/
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public final static String CRASH_FOLDER_NAME = "crash";
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/**
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* app在sd卡存放图片的目录
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*/
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public final static String PHOTO_FOLDER_NAME = "photo";
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@Override
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public void onCreate() {
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super.onCreate();
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configCollectCrashInfo();
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}
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/**
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* 配置奔溃信息的搜集
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*/
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private void configCollectCrashInfo() {
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CrashExceptionHandler crashExceptionHandler = new CrashExceptionHandler(this, APP_MAIN_FOLDER_NAME, CRASH_FOLDER_NAME);
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Thread.setDefaultUncaughtExceptionHandler(crashExceptionHandler);
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}
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}

‎src/main/java/com/clock/study/activity/CameraTakePhotoActivity.java‎

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package com.clock.study.activity;
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import android.content.Intent;
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import android.net.Uri;
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import android.os.Bundle;
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import android.os.Environment;
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import android.provider.MediaStore;
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import android.support.v7.app.AppCompatActivity;
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import android.util.Log;
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import android.view.View;
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import android.widget.Toast;
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import com.clock.study.R;
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import com.clock.study.StudyApplication;
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import com.clock.utils.bitmap.BitmapUtils;
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import com.clock.utils.common.SystemUtils;
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import java.io.File;
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import java.io.IOException;
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/**
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* 调用系统相机进行拍照
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*
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* @author Clock
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* @since 2016-05-13
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*/
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public class CameraTakePhotoActivity extends AppCompatActivity implements View.OnClickListener {
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private final static String TAG = CameraTakePhotoActivity.class.getSimpleName();
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private final static int TAKE_PHOTO_REQUEST_CODE = 1000;
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private File mTempFile;
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_camera_take_photo);
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findViewById(R.id.iv_take_photo).setOnClickListener(this);
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}
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@Override
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public void onClick(View v) {
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int viewId = v.getId();
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if (viewId == R.id.iv_take_photo) {
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createTempFile();
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if (mTempFile != null) {
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startCamera();
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} else {
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Toast.makeText(this, R.string.start_camera_error, Toast.LENGTH_SHORT).show();
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}
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}
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}
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/**
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* 调用系统相机
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*/
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private void startCamera() {
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Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
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Uri fileUri = Uri.fromFile(mTempFile);
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intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri);
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startActivityForResult(intent, TAKE_PHOTO_REQUEST_CODE);
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}
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/**
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* 创建临时文件用于存储图片
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*/
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private void createTempFile() {
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if (SystemUtils.mountedSdCard()) {
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File appFolder = new File(Environment.getExternalStorageDirectory(), StudyApplication.APP_MAIN_FOLDER_NAME);
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if (!appFolder.exists()) {
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appFolder.mkdir();//创建app的主目录
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}
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File photoFolder = new File(appFolder, StudyApplication.PHOTO_FOLDER_NAME);
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if (!photoFolder.exists()) {
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photoFolder.mkdir();//创建存放图片的目录
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}
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if (mTempFile == null && photoFolder.exists()) {
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mTempFile = new File(photoFolder, BitmapUtils.TEMP_FILE_NAME + BitmapUtils.JPG_SUFFIX);
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}
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if (mTempFile == null) {
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return;
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}
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if (mTempFile.exists()) {
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mTempFile.delete();
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}
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try {
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mTempFile.createNewFile();
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} catch (IOException e) {
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e.printStackTrace();
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mTempFile = null;
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}
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}
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}
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@Override
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protected void onActivityResult(int requestCode, int resultCode, Intent data) {
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Log.i(TAG, "requestCode: " + requestCode + " resultCode: " + resultCode + " data: " + data);
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if (requestCode == TAKE_PHOTO_REQUEST_CODE && resultCode == RESULT_OK) {
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PhotoPreviewActivity.preview(this, mTempFile);
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finish();
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} else {
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super.onActivityResult(requestCode, resultCode, data);
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}
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}
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}

‎src/main/java/com/clock/study/activity/MainActivity.java‎

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package com.clock.study.activity;
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import android.content.Intent;
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import android.os.Bundle;
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import android.support.v7.app.AppCompatActivity;
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import android.view.View;
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import com.clock.study.R;
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public class MainActivity extends AppCompatActivity implements View.OnClickListener {
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_main);
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findViewById(R.id.btn_camera_take_photo).setOnClickListener(this);
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}
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@Override
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public void onClick(View v) {
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int viewId = v.getId();
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if (viewId == R.id.btn_camera_take_photo) {
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Intent takePhotoIntent = new Intent(this, CameraTakePhotoActivity.class);
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startActivity(takePhotoIntent);
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}
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}
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}

‎src/main/java/com/clock/study/activity/PhotoPreviewActivity.java‎

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package com.clock.study.activity;
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import android.app.Activity;
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import android.content.Intent;
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import android.graphics.Bitmap;
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import android.support.v7.app.AppCompatActivity;
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import android.os.Bundle;
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import android.widget.ImageView;
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import com.clock.study.R;
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import com.clock.utils.bitmap.BitmapUtils;
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import com.clock.utils.common.RuleUtils;
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import java.io.File;
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/**
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* 预览图片界面
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*
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* @author Clock
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* @since 2016-05-13
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*/
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public class PhotoPreviewActivity extends AppCompatActivity {
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private final static float RATIO = 0.75f;
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private final static String EXTRA_IMAGE = "extra_image";
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private ImageView mPhotoPreview;
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private File mImageFile;
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_photo_preview);
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mPhotoPreview = (ImageView) findViewById(R.id.iv_photo_preview);
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mImageFile = (File) getIntent().getSerializableExtra(EXTRA_IMAGE);
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int requestWidth = (int) (RuleUtils.getScreenWidth(this) * RATIO);
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int requestHeight = (int) (RuleUtils.getScreenHeight(this) * RATIO);
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Bitmap bitmap = BitmapUtils.decodeBitmapFromFile(mImageFile, requestWidth, requestHeight);//按照屏幕宽高的3/4比例进行缩放显示
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if (bitmap != null) {
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mPhotoPreview.setImageBitmap(bitmap);
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}
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}
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public static void preview(Activity activity, File file) {
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Intent previewIntent = new Intent(activity, PhotoPreviewActivity.class);
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previewIntent.putExtra(EXTRA_IMAGE, file);
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activity.startActivity(previewIntent);
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}
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}

‎src/main/res/layout/activity_camera_take_photo.xml‎

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<?xml version="1.0" encoding="utf-8"?>
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<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
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android:layout_width="match_parent"
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android:layout_height="match_parent"
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android:orientation="vertical"
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android:paddingBottom="@dimen/activity_vertical_margin"
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android:paddingLeft="@dimen/activity_horizontal_margin"
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android:paddingRight="@dimen/activity_horizontal_margin"
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android:paddingTop="@dimen/activity_vertical_margin">
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<Button
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android:id="@+id/iv_take_photo"
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android:layout_width="match_parent"
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android:layout_height="wrap_content"
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android:text="拍张照片吧" />
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</LinearLayout>

‎src/main/res/layout/activity_main.xml‎

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<?xml version="1.0" encoding="utf-8"?>
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<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
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xmlns:tools="http://schemas.android.com/tools"
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<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
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android:layout_width="match_parent"
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android:layout_height="match_parent"
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android:paddingBottom="@dimen/activity_vertical_margin"
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android:paddingLeft="@dimen/activity_horizontal_margin"
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android:paddingRight="@dimen/activity_horizontal_margin"
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android:paddingTop="@dimen/activity_vertical_margin"
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tools:context="com.clock.study.MainActivity">
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android:paddingTop="@dimen/activity_vertical_margin">
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<TextView
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android:layout_width="wrap_content"
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<Button
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android:id="@+id/btn_camera_take_photo"
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android:layout_width="match_parent"
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android:layout_height="wrap_content"
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android:text="Hello World!" />
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</RelativeLayout>
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android:text="拍照保存实现代码" />
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</LinearLayout>

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