133 lines
4.1 KiB
Java
133 lines
4.1 KiB
Java
package net.crystalyx.setaswallpaper;
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import android.app.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.widget.Toast;
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import androidx.core.content.FileProvider;
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import java.io.*;
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import java.net.MalformedURLException;
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import java.net.URL;
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import java.net.URLConnection;
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import java.util.Random;
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import java.util.concurrent.ExecutorService;
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import java.util.concurrent.Executors;
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public class SetWallpaperActivity extends Activity {
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private boolean toBeFinished;
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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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toBeFinished = false;
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Intent intent = getIntent();
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String type = intent.getType();
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if (Intent.ACTION_SEND.equals(intent.getAction()) && type != null) {
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if ("text/plain".equals(type)) {
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handleUrl(intent.getStringExtra(Intent.EXTRA_TEXT));
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} else if (type.startsWith("image/")) {
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handleStream(intent.getParcelableExtra(Intent.EXTRA_STREAM), type);
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} else {
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toBeFinished = true;
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}
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} else {
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toBeFinished = true;
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}
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}
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@Override
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protected void onPause() {
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super.onPause();
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toBeFinished = true;
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}
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@Override
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protected void onResume() {
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super.onResume();
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if (!toBeFinished) {
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finish();
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}
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}
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private String generateRandomString() {
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int leftLimit = 97; // letter 'a'
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int rightLimit = 122; // letter 'z'
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int targetStringLength = 3;
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Random random = new Random();
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StringBuilder buffer = new StringBuilder(targetStringLength);
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for (int i = 0; i < targetStringLength; i++) {
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int randomLimitedInt = leftLimit + (int)
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(random.nextFloat() * (rightLimit - leftLimit + 1));
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buffer.append((char) randomLimitedInt);
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}
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return buffer.toString();
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}
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private void handleUrl(String textUrl) {
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URL url;
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try {
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url = new URL(textUrl);
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} catch (MalformedURLException e) {
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Toast.makeText(this, e.getMessage(), Toast.LENGTH_SHORT).show();
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return;
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}
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ExecutorService executor = Executors.newSingleThreadExecutor();
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executor.execute(() -> {
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try {
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URLConnection connection = url.openConnection();
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connection.connect();
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InputStream inputStream = connection.getInputStream();
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launchWallpaperActivity(writeImageToCache(inputStream), connection.getContentType());
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} catch (IOException e) {
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e.printStackTrace();
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}
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});
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}
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private void handleStream(Uri uri, String type) {
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try {
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InputStream inputStream = getContentResolver().openInputStream(uri);
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launchWallpaperActivity(writeImageToCache(inputStream), type);
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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private Uri writeImageToCache(InputStream inputStream) throws IOException {
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File outputFile = File.createTempFile(generateRandomString(), generateRandomString(), getCacheDir());
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OutputStream outputStream = new FileOutputStream(outputFile);
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byte[] data = new byte[1024];
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int count;
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while ((count = inputStream.read(data)) != -1) {
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outputStream.write(data, 0, count);
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}
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outputStream.flush();
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outputStream.close();
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inputStream.close();
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return FileProvider.getUriForFile(getApplicationContext(), getPackageName() + ".provider", outputFile);
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}
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private void launchWallpaperActivity(Uri uri, String mimeType) {
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Intent intent = new Intent(Intent.ACTION_ATTACH_DATA);
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intent.addCategory(Intent.CATEGORY_DEFAULT);
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intent.setDataAndType(uri, mimeType);
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intent.putExtra("mimeType", mimeType);
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intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
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startActivity(Intent.createChooser(intent, "Set as:"));
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}
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}
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