我首先做了两个活动我在cardview中有视频列表列表我想在其他活动上播放该视频。我在第二个活动中添加了videoview,我不希望多个视频有多个活动。希望你们明白。
package eras.ppt.ras;
import android.content.Intent;
import android.provider.MediaStore;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.CardView;
import android.view.View;
public class FYJCActivity extends AppCompatActivity {
CardView mycard ;
private Intent intent;
private Intent intent1;
private Intent intent2;
private Intent intent3;
private Intent intent4;
private Intent intent5;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_fyjc);
mycard = (CardView) findViewById(R.id.physics);
mycard.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(FYJCActivity.this, VideoActivity.class);
startActivity(intent);
// finish();
// onBackPressed();
}
});
mycard = (CardView) findViewById(R.id.cardview);
mycard.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent1 = new Intent(FYJCActivity.this, VideoActivity.class);
startActivity(intent1);
// finish();
// onBackPressed();
}
});
mycard = (CardView) findViewById(R.id.cardview1);
mycard.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent2 = new Intent(FYJCActivity.this, VideoActivity.class);
startActivity(intent2);
// finish();
// onBackPressed();
}
});
mycard = (CardView) findViewById(R.id.cardview2);
mycard.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent3 = new Intent(FYJCActivity.this, VideoActivity.class);
startActivity(intent3);
// finish();
// onBackPressed();
}
});
mycard = (CardView) findViewById(R.id.cardview3);
mycard.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent4 = new Intent(FYJCActivity.this, VideoActivity.class);
startActivity(intent4);
// finish();
// onBackPressed();
}
});
mycard = (CardView) findViewById(R.id.cardview4);
mycard.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent5 = new Intent(FYJCActivity.this, VideoActivity.class);
startActivity(intent5);
// finish();
// onBackPressed();
}
});
}
}
这是我想要播放视频活动视频的代码。我不知道如何播放其他活动的视频,这就是为什么我还没有添加视频链接。
您必须使用putExtra在intent中添加额外信息。对于前者,
mycard = (CardView) findViewById(R.id.physics);
mycard.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(FYJCActivity.this, VideoActivity.class);
intent.putExtra("a_Tag","physics");
startActivity(intent);
}
});
在您的VideoActivity中,在onCreate方法中,您必须从intent中提取该信息,如下所示:
String item_selected=getIntent().getStringExtra("a_Tag"); //same tag you used before
//now item_selected is "physics"
您可以根据item_selected
的值显示相应的视频