camera

相机控制APP

.gitattributes

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+# Auto detect text files and perform LF normalization
+* text=auto
+
+# Custom for Visual Studio
+*.cs     diff=csharp
+
+# Standard to msysgit
+*.doc	 diff=astextplain
+*.DOC	 diff=astextplain
+*.docx diff=astextplain
+*.DOCX diff=astextplain
+*.dot  diff=astextplain
+*.DOT  diff=astextplain
+*.pdf  diff=astextplain
+*.PDF	 diff=astextplain
+*.rtf	 diff=astextplain
+*.RTF	 diff=astextplain

.gitignore

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+*.iml
+.gradle
+/local.properties
+/.idea/workspace.xml
+/.idea/libraries
+.DS_Store
+/build
+/captures

app/.gitignore

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+/build

app/build.gradle

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+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 23
+    buildToolsVersion '26.0.0'
+
+    defaultConfig {
+        applicationId "com.buaa.camera"
+        minSdkVersion 15
+        targetSdkVersion 23
+        versionCode 1
+        versionName "1.0"
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+}
+
+dependencies {
+    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
+    compile fileTree(dir: 'libs', include: ['*.jar'])
+    testCompile 'junit:junit:4.12'
+    compile 'com.android.support:appcompat-v7:23.0.0'
+}

app/proguard-rules.pro

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+# Add project specific ProGuard rules here.
+# By default, the flags in this file are appended to flags specified
+# in D:\android\sdk/tools/proguard/proguard-android.txt
+# You can edit the include path and order by changing the proguardFiles
+# directive in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# Add any project specific keep options here:
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}

app/src/androidTest/java/com/buaa/camera/ApplicationTest.java

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+package com.buaa.camera;
+
+import android.app.Application;
+import android.test.ApplicationTestCase;
+
+/**
+ * <a href="http://d.android.com/tools/testing/testing_android.html">Testing Fundamentals</a>
+ */
+public class ApplicationTest extends ApplicationTestCase<Application> {
+    public ApplicationTest() {
+        super(Application.class);
+    }
+}

app/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.buaa.camera">
+
+    <uses-permission android:name="android.permission.CAMERA" />
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme">
+        <activity android:name=".activity.MainActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+        <activity android:name=".activity.instructionActivity"/>
+    </application>
+
+</manifest>

app/src/main/java/com/buaa/camera/activity/MainActivity.java

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+package com.buaa.camera.activity;
+
+
+import android.Manifest;
+import android.content.Intent;
+import android.content.pm.PackageManager;
+import android.os.Build;
+import android.support.v4.app.ActivityCompat;
+import android.support.v4.content.ContextCompat;
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+import android.view.KeyEvent;
+import android.view.View;
+import android.view.Window;
+import android.widget.ImageButton;
+import android.widget.Toast;
+
+import com.buaa.camera.R;
+
+public class MainActivity extends AppCompatActivity implements View.OnClickListener {
+
+    private final int PERMISSION_CODE = 122;
+    private ImageButton cameraButton;
+    private ImageButton instructionButton;
+    private ImageButton setupButton;
+    private long exitTime = 0;
+
+    private final int IMAGE_CAMERA = 123;
+    //private final int CUT_PHOTO = 124;
+    //private final int PERMISSION_CODE = 122;
+    //private final int IMAGE_ALBUM = 125;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        requestWindowFeature(Window.FEATURE_NO_TITLE);//加入后Nexus5X闪退
+        setContentView(R.layout.activity_main);
+        intiView();
+    }
+
+    private void intiView() {
+        cameraButton = (ImageButton) findViewById(R.id.ImageButton1);
+        instructionButton = (ImageButton) findViewById(R.id.ImageButton2);
+        setupButton = (ImageButton) findViewById(R.id.Setup);
+        cameraButton.setOnClickListener(this);
+        instructionButton.setOnClickListener(this);
+        setupButton.setOnClickListener(this);
+    }
+
+
+    @Override
+    public void onClick(View view) {
+        switch (view.getId()) {
+            case R.id.ImageButton2:
+
+                //打开说明界面
+                Intent intent = new Intent(MainActivity.this,instructionActivity.class);
+                startActivity(intent);
+                break;
+            case R.id.ImageButton1:
+                getPermission();
+                break;
+            case R.id.Setup:
+
+                break;
+        }
+    }
+
+    public void getPermission() {
+        if (Build.VERSION.SDK_INT >= 23) {
+            //检查应用是否有相机权限，如果有则返回PERMISSION_GRANTED,否则返回PERMISSION_DENIED
+            int checkPermission = ContextCompat.
+                    checkSelfPermission(this, Manifest.permission.CAMERA);
+            if (checkPermission != PackageManager.PERMISSION_GRANTED) {
+                //如果未被赋予权限则弹框请求给予权限
+                ActivityCompat.requestPermissions(this,
+                        new String[]{Manifest.permission.CAMERA},
+                        PERMISSION_CODE);
+                return;
+            } else {
+                //打开相机界面
+                Intent intent = new Intent("android.media.action.IMAGE_CAPTURE");
+                startActivityForResult(intent, IMAGE_CAMERA);
+            }
+        } else {
+            Intent intent = new Intent("android.media.action.IMAGE_CAPTURE");
+            startActivityForResult(intent, IMAGE_CAMERA);
+        }
+    }
+
+    @Override
+    public void onRequestPermissionsResult(int requestCode,
+                                           String[] permissions, int[] grantResults) {
+        switch (requestCode) {
+            case PERMISSION_CODE:
+                if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
+                    Toast.makeText(this, "获取权限成功", Toast.LENGTH_SHORT)
+                            .show();   //checkAnswer(true);
+                    //已经获得授权，打开相机
+                    Intent intent = new Intent("android.media.action.IMAGE_CAPTURE");
+                    startActivityForResult(intent, IMAGE_CAMERA);
+                } else {
+                    Toast.makeText(this, "获取权限失败", Toast.LENGTH_SHORT)
+                            .show();
+                    //未获得授权，结束当前活动
+                    this.finish();
+                }
+                break;
+            default:
+                super.onRequestPermissionsResult(requestCode, permissions, grantResults);
+        }
+    }
+
+
+
+    @Override
+    public boolean onKeyDown(int keyCode, KeyEvent event) {
+        if (keyCode == KeyEvent.KEYCODE_BACK) {
+            if (System.currentTimeMillis() - exitTime > 2000) {
+                exitTime = System.currentTimeMillis();
+                Toast.makeText(this, "再按退出", Toast.LENGTH_SHORT).show();
+            } else {
+                finish();
+                System.exit(0);
+            }
+        }
+        return true;
+    }
+}

app/src/main/java/com/buaa/camera/activity/instructionActivity.java

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+package com.buaa.camera.activity;
+
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+
+import com.buaa.camera.R;
+
+public class instructionActivity extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_instruction);
+    }
+
+
+}

app/src/main/res/layout/activity_instruction.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="@drawable/background"
+    android:orientation="vertical"
+    tools:context="com.buaa.camera.activity.instructionActivity">
+
+
+</android.support.constraint.ConstraintLayout>