<?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"
tools:context=".MainActivity"
android:padding="10dp"
android:orientation="vertical">
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Test"
android:textSize="20sp"
android:onClick="aaaa"/>
<TextView
android:layout_width="match_parent"
android:layout_height="100dp"
android:text="text"
android:id="@+id/tv10"/>
</LinearLayout>
public class MainActivity extends AppCompatActivity {
private TextView tv10;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
tv10=(TextView)findViewById(R.id.tv10);
Toast.makeText(getApplicationContext(), "H: "+tv10.getHeight(), Toast.LENGTH_SHORT).show();
}
public void aaaa(View view) {
Toast.makeText(getApplicationContext(), "H: "+tv10.getHeight(), Toast.LENGTH_SHORT).show();
}
}
*当我按下“ Test”按钮时,“ tv10.getHeight()”给出了TextView Height的值,但是onCreate()方法“ tv10.getHeight()”给出了TextView Height的0。 * 我需要将TextView Height放入onCreate()方法中
答案 0 :(得分:0)
请使用此代码:
textview.post(new Runnable() {
public void run() {
int height = textview.getHeight();
}
});