獲取本地圖片/視訊
阿新 • • 發佈：2018-11-20
獲取手機哩的照片或視訊
佈局
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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:orientation="vertical"
tools:context="test.com.photo.MainActivity">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="拍照"
android:textSize="16sp"
android:textStyle="bold" />
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginTop="50dp">
<LinearLayout
android:id="@+id/check"
android:layout_width="300dp"
android:layout_height="300dp"
android:layout_centerHorizontal="true"
android:background="@drawable/textviewborder"
android:gravity="center"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="請選擇" />
<TextView
android:id="@+id/checkphoto"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="照片"
android:textColor="@color/colorAccent" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="/" />
<TextView
android:id="@+id/checkvideo"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="視訊"
android:textColor="@color/colorAccent" />
</LinearLayout>
<ImageView
android:id="@+id/checkedimg"
android:layout_width="wrap_content"
android:layout_height="300dp"
android:layout_centerInParent="true"
android:visibility="invisible" />
<VideoView
android:id="@+id/video"
android:layout_width="match_parent"
android:layout_height="300dp"
android:visibility="invisible" />
</RelativeLayout>
<Button
android:id="@+id/checktrue"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="確定"
android:visibility="invisible" />
</LinearLayout>
程式碼
package test.com.photo;
import android.content.ContentResolver;
import android.content.Intent;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.drawable.BitmapDrawable;
import android.media.MediaPlayer;
import android.net.Uri;
import android.support.annotation.MainThread;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.MediaController;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.VideoView;
import java.io.FileNotFoundException;
public class MainActivity extends AppCompatActivity {
LinearLayout check;
VideoView videoView;
Button checktrue;
TextView checkvideo, checkphoto;
Uri uri;
String name, number, path, size;
ImageView checkedimg;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//初始化控制元件
check = findViewById(R.id.check);
checkvideo = findViewById(R.id.checkvideo);
checkphoto = findViewById(R.id.checkphoto);
videoView = findViewById(R.id.video);
checktrue = findViewById(R.id.checktrue);
checkedimg = findViewById(R.id.checkedimg);
checkvideo.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent();
intent.setType("video/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(intent, 1);
}
});
checkphoto.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//開啟本地相簿
Intent intent = new Intent(
Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
//設定結果返回
startActivityForResult(intent, 2);
}
});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// TODO Auto-generated method stub
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == 1) {
if (resultCode == RESULT_OK) {
uri = data.getData();
Cursor cursor = getContentResolver().query(uri, null, null, null, null);
cursor.moveToFirst();
number = cursor.getString(0); // 視訊編號
path = cursor.getString(1); // 視訊檔案路徑
size = cursor.getString(2); // 視訊大小
name = cursor.getString(3); // 視訊檔名
cursor.close();
//設定視訊控制器
videoView.setMediaController(new MediaController(this));
//播放完成回撥
videoView.setOnCompletionListener(new MyPlayerOnCompletionListener());
//設定視訊路徑
videoView.setVideoURI(uri);
//設定控制元件的顯示隱藏
check.setVisibility(View.INVISIBLE);
checkedimg.setVisibility(View.INVISIBLE);
videoView.setVisibility(View.VISIBLE);
//點選播放
checkvideo.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//開始播放視訊
videoView.start();
}
});
}
}
if (requestCode == 2) {
if (resultCode == RESULT_OK) {
uri = data.getData();
Cursor cursor = getContentResolver().query(uri, null, null, null, null);
cursor.moveToFirst();
number = cursor.getString(0); // 圖片編號
path = cursor.getString(1); // 圖片檔案路徑
size = cursor.getString(2); // 圖片大小
name = cursor.getString(3); // 圖片檔名
cursor.close();
//設定控制元件的顯示隱藏
check.setVisibility(View.INVISIBLE);
videoView.setVisibility(View.INVISIBLE);
checkedimg.setVisibility(View.VISIBLE);
ContentResolver cr = MainActivity.this.getContentResolver();
try {
checkedimg.setImageBitmap(BitmapFactory.decodeStream(cr.openInputStream(uri)));
} catch (FileNotFoundException e) {
e.printStackTrace();
}
}
}
checktrue.setVisibility(View.VISIBLE);
checktrue.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (uri != null) {
Toast.makeText(MainActivity.this, "即將傳遞" + name + path + "，將浪費流量：" + size, Toast.LENGTH_LONG).show();
} else {
Toast.makeText(MainActivity.this, "請選擇圖片/視訊", Toast.LENGTH_LONG).show();
}
//設定控制元件的顯示隱藏
check.setVisibility(View.VISIBLE);
checkedimg.setVisibility(View.INVISIBLE);
videoView.setVisibility(View.INVISIBLE);
}
});
}
class MyPlayerOnCompletionListener implements MediaPlayer.OnCompletionListener {
@Override
public void onCompletion(MediaPlayer mp) {
Toast.makeText(MainActivity.this, "播放完成了", Toast.LENGTH_SHORT).show();
}
}
}
textviewborder.xml
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle" >
<solid android:color="#ffffff" />
<stroke android:width="1dip" android:color="#000"/>
</shape>