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Author SHA1 Message Date
1d0192083d Kamera Preview ergänzt 2023-06-21 14:41:42 +02:00
5 changed files with 119 additions and 0 deletions

View File

@ -29,6 +29,9 @@
<activity <activity
android:name=".AccelerometerActivity" android:name=".AccelerometerActivity"
android:exported="false" /> android:exported="false" />
<activity
android:name=".VideoPreviewActivity"
android:exported="false" />
<activity <activity
android:name=".MainActivity" android:name=".MainActivity"
android:exported="true"> android:exported="true">

View File

@ -27,6 +27,7 @@ public class MainActivity extends AppCompatActivity {
private Button audiodetectionAndAccelerometerButton; private Button audiodetectionAndAccelerometerButton;
private Button videodetectionAndAccelerometerButton; private Button videodetectionAndAccelerometerButton;
private Button connectionButton; private Button connectionButton;
private Button prewview_kamera;
private MainActivityViewModel mMainActivityViewModel; private MainActivityViewModel mMainActivityViewModel;
@Override @Override
@ -40,6 +41,7 @@ public class MainActivity extends AppCompatActivity {
audiodetectionAndAccelerometerButton = (Button) findViewById(R.id.audiodetectionAndAccelerometerButton); audiodetectionAndAccelerometerButton = (Button) findViewById(R.id.audiodetectionAndAccelerometerButton);
videodetectionAndAccelerometerButton = (Button) findViewById(R.id.videodetectionAndAccelerometerButton); videodetectionAndAccelerometerButton = (Button) findViewById(R.id.videodetectionAndAccelerometerButton);
connectionButton = (Button) findViewById(R.id.connectionButton); connectionButton = (Button) findViewById(R.id.connectionButton);
prewview_kamera = (Button) findViewById(R.id.preview_kamera);
RecyclerView deviceListRecyclerView = findViewById(R.id.deviceListRecyclerView); RecyclerView deviceListRecyclerView = findViewById(R.id.deviceListRecyclerView);
deviceListRecyclerView.setLayoutManager(new LinearLayoutManager(this)); deviceListRecyclerView.setLayoutManager(new LinearLayoutManager(this));
@ -84,6 +86,17 @@ public class MainActivity extends AppCompatActivity {
} }
}); });
prewview_kamera.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (mMainActivityViewModel.isCameraAccessAllowed(MainActivity.this)) {
openVideoPrewvoewActivity();
}
else {
mMainActivityViewModel.accessRequestCamera(MainActivity.this);
}
}
});
audiodetectionButton.setOnClickListener(new View.OnClickListener() { audiodetectionButton.setOnClickListener(new View.OnClickListener() {
@Override @Override
public void onClick(View v) { public void onClick(View v) {
@ -131,6 +144,10 @@ public class MainActivity extends AppCompatActivity {
} }
}); });
} }
public void openVideoPrewvoewActivity() {
Intent intent = new Intent(this, VideoPreviewActivity.class);
startActivity(intent);
}
public void openAudiodetectionActivity(){ public void openAudiodetectionActivity(){
Intent intent = new Intent(this, AudiodetectionActivity.class); Intent intent = new Intent(this, AudiodetectionActivity.class);
startActivity(intent); startActivity(intent);

View File

@ -0,0 +1,61 @@
package com.example.greenwatch;
import android.os.Bundle;
import android.util.Size;
import android.widget.Button;
import androidx.appcompat.app.AppCompatActivity;
import androidx.camera.core.CameraSelector;
import androidx.camera.core.ImageAnalysis;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.Preview;
import androidx.camera.lifecycle.ProcessCameraProvider;
import androidx.camera.view.PreviewView;
import androidx.core.content.ContextCompat;
import androidx.lifecycle.LifecycleOwner;
import com.google.common.util.concurrent.ListenableFuture;
import java.util.concurrent.ExecutionException;
public class VideoPreviewActivity extends AppCompatActivity {
private Button backToMainActivity;
private PreviewView previewView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_preview_kamera);
backToMainActivity = (Button) findViewById(R.id.videodetectorBackToMainActivity);
previewView = findViewById(R.id.previewView);
backToMainActivity.setOnClickListener(v -> finish());
final ListenableFuture<ProcessCameraProvider> cameraProviderFuture = ProcessCameraProvider.getInstance(this);
cameraProviderFuture.addListener(() -> {
try {
bindImageAnalysis(cameraProviderFuture.get());
} catch (ExecutionException | InterruptedException e) {
e.printStackTrace();
}
}, ContextCompat.getMainExecutor(this));
}
private void bindImageAnalysis(ProcessCameraProvider cameraProvider) {
ImageAnalysis.Builder builder = new ImageAnalysis.Builder();
builder.setTargetResolution(new Size(640, 480));
builder.setBackpressureStrategy(ImageAnalysis.STRATEGY_KEEP_ONLY_LATEST);
ImageAnalysis imageAnalysis = builder.build();
imageAnalysis.setAnalyzer(
ContextCompat.getMainExecutor(this),
ImageProxy::close);
Preview preview = new Preview.Builder().build();
CameraSelector cameraSelector = new CameraSelector.Builder().requireLensFacing(CameraSelector.LENS_FACING_BACK).build();
preview.setSurfaceProvider(previewView.getSurfaceProvider());
cameraProvider.bindToLifecycle((LifecycleOwner) this, cameraSelector, imageAnalysis, preview);
}
}

View File

@ -8,6 +8,12 @@
android:padding="10dp" android:padding="10dp"
tools:context=".MainActivity"> tools:context=".MainActivity">
<Button
android:id="@+id/preview_kamera"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="PrewView Kamera" />
<androidx.recyclerview.widget.RecyclerView <androidx.recyclerview.widget.RecyclerView
android:id="@+id/alarmHistoryListRecyclerView" android:id="@+id/alarmHistoryListRecyclerView"
android:layout_width="match_parent" android:layout_width="match_parent"
@ -22,6 +28,7 @@
android:layout_height="match_parent" android:layout_height="match_parent"
android:layout_weight="3" android:layout_weight="3"
tools:listitem="@layout/device_item"> tools:listitem="@layout/device_item">
</androidx.recyclerview.widget.RecyclerView> </androidx.recyclerview.widget.RecyclerView>
<LinearLayout <LinearLayout

View File

@ -0,0 +1,31 @@
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.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"
tools:context="">
<Button
android:id="@+id/videodetectorBackToMainActivity"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Back to MainActivity">
</Button>
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/erklaerung">
<androidx.camera.view.PreviewView
android:id="@+id/previewView"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</FrameLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"/>
</androidx.constraintlayout.widget.ConstraintLayout>