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add a button for toggling front/rear camera

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This commit is contained in:
tibbi 2016-04-18 23:41:35 +02:00
parent a556ff10a1
commit 22d2b16ab3
3 changed files with 42 additions and 14 deletions
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22
app/src/main/java/com/simplemobiletools/camera/MainActivity.java
View File

@ -3,8 +3,8 @@ package com.simplemobiletools.camera;
import android.hardware.Camera; import android.hardware.Camera;
import android.os.Bundle; import android.os.Bundle;
import android.support.v7.app.AppCompatActivity; import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.SurfaceView; import android.view.SurfaceView;
import android.view.View;
import android.view.ViewGroup; import android.view.ViewGroup;
import android.view.Window; import android.view.Window;
import android.view.WindowManager; import android.view.WindowManager;
@ -16,9 +16,10 @@ import butterknife.OnClick;
public class MainActivity extends AppCompatActivity { public class MainActivity extends AppCompatActivity {
@Bind(R.id.viewHolder) RelativeLayout viewHolder; @Bind(R.id.viewHolder) RelativeLayout viewHolder;
@Bind(R.id.toggle_camera) View toggleCameraBtn;
private static final String TAG = Preview.class.getSimpleName();
private Preview preview; private Preview preview;
private int currCamera;
@Override @Override
protected void onCreate(Bundle savedInstanceState) { protected void onCreate(Bundle savedInstanceState) {
@ -28,12 +29,17 @@ public class MainActivity extends AppCompatActivity {
setContentView(R.layout.activity_main); setContentView(R.layout.activity_main);
ButterKnife.bind(this); ButterKnife.bind(this);
currCamera = Camera.CameraInfo.CAMERA_FACING_BACK;
preview = new Preview(this, (SurfaceView) findViewById(R.id.surfaceView)); preview = new Preview(this, (SurfaceView) findViewById(R.id.surfaceView));
preview.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT)); preview.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT));
viewHolder.addView(preview); viewHolder.addView(preview);
} }
@OnClick(R.id.toggle_camera)
public void toggleCamera() {
}
@OnClick(R.id.shutter) @OnClick(R.id.shutter)
public void takePicture() { public void takePicture() {
preview.takePicture(); preview.takePicture();
@ -43,12 +49,12 @@ public class MainActivity extends AppCompatActivity {
protected void onResume() { protected void onResume() {
super.onResume(); super.onResume();
try { final int cnt = Camera.getNumberOfCameras();
Camera camera = Camera.open(0); if (cnt == 1) {
preview.setCamera(camera); toggleCameraBtn.setVisibility(View.INVISIBLE);
} catch (Exception e) {
Log.e(TAG, "onResume IOException " + e.getMessage());
} }
Camera camera = Camera.open(currCamera);
preview.setCamera(camera);
} }
@Override @Override

2
app/src/main/java/com/simplemobiletools/camera/Preview.java
View File

@ -39,7 +39,7 @@ public class Preview extends ViewGroup implements SurfaceHolder.Callback, View.O
surfaceHolder.addCallback(this); surfaceHolder.addCallback(this);
surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
canTakePicture = true; canTakePicture = true;
setOnTouchListener(this); surfaceView.setOnTouchListener(this);
} }
public void setCamera(Camera newCamera) { public void setCamera(Camera newCamera) {

28
app/src/main/res/layout/activity_main.xml
View File

@ -10,13 +10,35 @@
android:layout_width="wrap_content" android:layout_width="wrap_content"
android:layout_height="wrap_content"/> android:layout_height="wrap_content"/>
<LinearLayout
android:id="@+id/btn_holder"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_marginBottom="@dimen/preview_btn_margin"
android:gravity="center_horizontal">
<ImageView
android:id="@+id/toggle_camera"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:src="@mipmap/ic_launcher"/>
<ImageView <ImageView
android:id="@+id/shutter" android:id="@+id/shutter"
android:layout_width="wrap_content" android:layout_width="wrap_content"
android:layout_height="wrap_content" android:layout_height="wrap_content"
android:layout_alignParentBottom="true" android:layout_weight="1"
android:layout_centerHorizontal="true"
android:layout_marginBottom="@dimen/preview_btn_margin"
android:src="@mipmap/ic_launcher"/> android:src="@mipmap/ic_launcher"/>
<ImageView
android:id="@+id/toggle_flash"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:src="@mipmap/ic_launcher"
android:visibility="invisible"/>
</LinearLayout>
</RelativeLayout> </RelativeLayout>