为啥按钮没反应?
public class MainActivity extends AppCompatActivity implements View.OnClickListener {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//遍历控件,如何是按钮就注册点击事件监听器
LinearLayout MainLayout = (LinearLayout) getLayoutInflater().inflate(R.layout.activity_main, null);
for (int i = 0; i < MainLayout.getChildCount(); i++) {
View v = MainLayout.getChildAt(i);
if (v instanceof Button)
{
Button button = (Button) v;
button.setOnClickListener(this);
}
}
@Override
public void onClick(View v) {
switch (v.getId())
{
//按钮响应代码
case R.id.ButtonGetContent:
EditText txtContent = (EditText) findViewById(R.id.Edit_Name);
Toast.makeText(MainActivity.this,txtContent.getText().toString(),Toast.LENGTH_SHORT).show();
default:
break;
}
}
}