切换到另一个activity时，无法显示自己在此activity中定义的控件
我写了一个小程序，在一个activity上按下“CHANGE TO 2”button即可转到第二个activity，同时，第二个activity也有“CHANGE TO 1”的button，两个activity分别对应ActivityTextActivity.java和Report.java
问题是：当我切换到第二个activity时，那个“CHANGE TO 1”的button并未实现，连我设置的Toast显示的提示都未出现
ActivityTextActivity.java的代码：
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
public class ActivityTestActivity extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Toast.makeText(this, "Activity 1",Toast.LENGTH_LONG).show();
Button btn = (Button)findViewById(R.id.button);
btn.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View v){
Intent intent = new Intent();
intent.setClass(ActivityTestActivity.this, Report.class);
startActivity(intent);
//ActivityTestActivity.this.finish();
}
});
}
}
Report.java的代码：
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
public class Report extends Activity {
public void onCreat(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.report);
Toast.makeText(this, "Activity 2",Toast.LENGTH_LONG).show();
Button btn = (Button)findViewById(R.id.buttonTwo);
btn.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View v){
Intent intent = new Intent();
intent.setClass(Report.this,ActivityTestActivity.class);
startActivity(intent);
//Report.this.finish();
}
});
}
}
[解决办法]
这种错误你要好好检讨下，不要打？？？？
