Jiangdg
6 years ago
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package com.jiangdg.usbcamera.view; |
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import android.Manifest; |
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import android.content.Intent; |
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import android.content.pm.PackageManager; |
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import android.os.Build; |
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import android.os.Bundle; |
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import android.os.Handler; |
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import android.support.annotation.NonNull; |
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import android.support.v4.app.ActivityCompat; |
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import android.support.v4.content.ContextCompat; |
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import android.support.v7.app.AppCompatActivity; |
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import android.view.WindowManager; |
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import android.widget.Toast; |
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import com.jiangdg.usbcamera.R; |
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import java.util.ArrayList; |
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import java.util.List; |
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/** |
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* permission checking |
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* Created by jiangdongguo on 2019/6/27. |
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*/ |
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public class SplashActivity extends AppCompatActivity { |
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private static final String[] REQUIRED_PERMISSION_LIST = new String[]{ |
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Manifest.permission.WRITE_EXTERNAL_STORAGE, |
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Manifest.permission.RECORD_AUDIO, |
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}; |
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private static final int REQUEST_CODE = 1; |
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private List<String> mMissPermissions = new ArrayList<>(); |
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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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getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN); |
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setContentView(R.layout.activity_splash); |
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if (isVersionM()) { |
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checkAndRequestPermissions(); |
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} else { |
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startMainActivity(); |
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} |
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} |
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private boolean isVersionM() { |
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return Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP; |
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} |
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private void checkAndRequestPermissions() { |
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mMissPermissions.clear(); |
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for (String permission : REQUIRED_PERMISSION_LIST) { |
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int result = ContextCompat.checkSelfPermission(this, permission); |
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if (result != PackageManager.PERMISSION_GRANTED) { |
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mMissPermissions.add(permission); |
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} |
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} |
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// check permissions has granted
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if (mMissPermissions.isEmpty()) { |
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startMainActivity(); |
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} else { |
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ActivityCompat.requestPermissions(this, |
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mMissPermissions.toArray(new String[mMissPermissions.size()]), |
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REQUEST_CODE); |
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} |
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} |
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@Override |
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public void onRequestPermissionsResult(final int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) { |
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super.onRequestPermissionsResult(requestCode, permissions, grantResults); |
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if (requestCode == REQUEST_CODE) { |
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for (int i = grantResults.length - 1; i >= 0; i--) { |
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if (grantResults[i] == PackageManager.PERMISSION_GRANTED) { |
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mMissPermissions.remove(permissions[i]); |
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} |
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} |
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} |
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// Get permissions success or not
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if (mMissPermissions.isEmpty()) { |
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startMainActivity(); |
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} else { |
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Toast.makeText(SplashActivity.this, "get permissions failed,exiting...",Toast.LENGTH_SHORT).show(); |
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SplashActivity.this.finish(); |
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} |
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} |
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private void startMainActivity() { |
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new Handler().postDelayed(new Runnable() { |
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@Override |
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public void run() { |
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startActivity(new Intent(SplashActivity.this, USBCameraActivity.class)); |
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SplashActivity.this.finish(); |
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} |
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}, 3000); |
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} |
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} |
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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:orientation="vertical" android:layout_width="match_parent" |
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android:layout_height="match_parent"> |
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<TextView |
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android:layout_width="410dp" |
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android:layout_height="0dp" |
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android:layout_weight="1" |
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android:gravity="center_horizontal|center_vertical" |
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android:text="Welcome to use!" |
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android:textSize="28sp" |
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android:textStyle="bold" /> |
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<TextView |
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android:layout_width="wrap_content" |
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android:layout_height="wrap_content" |
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android:layout_gravity="center_horizontal|center_vertical" |
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android:textSize="14sp" |
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android:textStyle="italic" |
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android:text="Author: jiangdongguo"/> |
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<TextView |
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android:layout_width="wrap_content" |
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android:layout_height="wrap_content" |
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android:layout_gravity="center_horizontal|center_vertical" |
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android:layout_marginTop="5dp" |
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android:textStyle="italic" |
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android:textSize="14sp" |
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android:text="Email:765067602@qq.com"/> |
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<TextView |
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android:layout_width="match_parent" |
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android:layout_height="0dp" |
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android:text="last modify 2019.6" |
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android:textSize="16sp" |
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android:textStyle="bold" |
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android:gravity="bottom|center_horizontal" |
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android:paddingBottom="20dp" |
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android:layout_weight="1"/> |
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</LinearLayout> |
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Before Width: | Height: | Size: 3.3 KiB After Width: | Height: | Size: 43 KiB |
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Before Width: | Height: | Size: 2.2 KiB After Width: | Height: | Size: 43 KiB |
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Before Width: | Height: | Size: 4.7 KiB After Width: | Height: | Size: 43 KiB |
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Before Width: | Height: | Size: 7.5 KiB After Width: | Height: | Size: 43 KiB |
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Before Width: | Height: | Size: 10 KiB After Width: | Height: | Size: 43 KiB |
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<resources> |
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<string name="app_name">UVCCamera</string> |
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<string name="app_name">AndroidUSBCamera</string> |
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</resources> |
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