下面textView的底部属性缩放错误,TextView 在每个 Android 设备上的高度都不同:见附图。
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.bars_layout);
RelativeLayout relativeLayout = (RelativeLayout)findViewById(R.id.bar_holder);
BarView view = new BarView(getApplicationContext());
int width = (int) getApplicationContext().getResources().getDimension(R.dimen.bar_width_compare);
int height = 200;
RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(width, height);
params.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM, RelativeLayout.TRUE);
int left = (int) getApplicationContext().getResources().getDimension(R.dimen.bar_margin_left_right);
int right = 0;
int bottom = (int) getApplicationContext().getResources().getDimension(R.dimen.graph_margin_bar_compare_bottom);
params.setMargins(left, 0, right, bottom);
view.setBackgroundColor(getApplicationContext().getResources().getColor(R.color.bar_dark_blue));
view.setLayoutParams(params);
relativeLayout.addView(view);
TextView textView = new TextView(getApplicationContext());
textView.setText(" 20 ");
textView.setTextSize(20);
textView.setTextColor(getApplicationContext().getResources().getColor(R.color.black_text));
width = (int) getApplicationContext().getResources().getDimension(R.dimen.bar_width);
height = 100;
bottom = (int) getApplicationContext().getResources().getDimension(R.dimen.graph_margin_bar_bottom);
int offset = getApplicationContext().getResources().getDimensionPixelOffset(R.dimen.graph_margin_bar_bottom);
int pxSize = getApplicationContext().getResources().getDimensionPixelSize(R.dimen.graph_margin_bar_bottom);
RelativeLayout.LayoutParams params2 = new RelativeLayout.LayoutParams(width, height);
params2.setMargins(0, 0, 0, bottom);
params2.addRule(Gravity.CENTER_HORIZONTAL);
params2.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM);
params2.addRule(RelativeLayout.ALIGN_LEFT, view.getId());
textView.setLayoutParams(params2);
relativeLayout.addView(textView);
}
}
bar_layout.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:orientation="horizontal"
android:layout_marginTop="40dp" >
<RelativeLayout
android:id="@+id/bar_holder"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_marginTop="20dp"
android:layout_marginBottom="10dp" >
</RelativeLayout>
</LinearLayout>
尺寸.xml
<resources>
<dimen name="graph_margin_bar_bottom">40dp</dimen>
<dimen name="bar_width_compare">25dp</dimen>
<dimen name="bar_margin_left_right">10dp</dimen>
<dimen name="graph_margin_bar_compare_bottom">50dp</dimen>
<dimen name="bar_width">50dp</dimen>
</resources>
以下是 2 个手机示例,但在每部手机上看起来都不同...
三星 Galaxy Tab 3 Lite(密度 1.0)
三星 Galaxy S4(密度 3.0)