使用View.setScaleX()
andView.setScaleY()
方法view
缩小后,结果只显示了已经显示的内容,其余部分在放大时不适合屏幕。如何强制它显示其余部分内容?
XML:activity_main.xml
<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/table"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
JAVA:MainActivity.java
package com.example.zoom;
import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.LinearLayout;
import android.widget.TableLayout;
import android.widget.TableRow;
import android.widget.TextView;
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
TableLayout table = (TableLayout) findViewById(R.id.table);
int textViewSize = 100;
int tableColCount = 15;
int tableRowCount = 15;
for (int row = 0; row < tableRowCount; row++) {
TableRow tr = new TableRow(this);
for (int col = 0; col < tableColCount; col++) {
TextView textView = new TextView(this);
textView.setText("" + row + "." + col);
textView.setTextSize(20.0f);
tr.addView(textView, textViewSize, textViewSize);
} // for
table.addView(tr);
} // for
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
LinearLayout table = (LinearLayout) findViewById(R.id.table);
switch (item.getItemId()) {
case R.id.action_zoom_in:
table.setScaleX(1.0f);
table.setScaleY(1.0f);
break;
case R.id.action_zoom_out:
table.setScaleX(0.25f);
table.setScaleY(0.25f);
break;
} // switch
return true;
}
}
我注意到这个问题和我的非常相似,但是没有代码也没有答案。